Tools and hardware – Locking or closing device – Lock – latch or bolt
Patent
1995-03-03
1996-07-02
Vinson, Brian N.
Tools and hardware
Locking or closing device
Lock, latch or bolt
Patent
active
D03713008
REFERENCES:
patent: D339057 (1993-09-01), Lofland
patent: 4680948 (1987-07-01), Stewart
patent: 5109683 (1992-05-01), Cartwright
"Safety Lockouts," Hoffman Engineering Company advertising brochure, p. 507 .COPYRGT.1995.
Federal-Hoffman Inc.
Vinson Brian N.
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